October in Kragujevac Memorial Park (Serbian: Spomen-park „Kragujevački oktobar", Спомен-парк „Крагујевачки октобар"), also known as Šumarice Memorial Park (Memorijalni park Šumarice, Меморијални парк Шумарице), is the site near Kragujevac, Serbia of the execution of an estimated 2,800 men and boys of the town by the German occupation forces on October 21, 1941, during World War II (Kragujevac massacre).

[1] The 21 October Museum was designed by architect Ivan Antić is located at the site of the massacre.

The next day, on October 20, one person out of these 13 died as a result of his injuries, so the Germans in the village of Grošnice committed a war crime by shooting a total of 234 people of Serbian nationality.

[3] On the same day, October 19, the Germans raided and rounded up 109 people for shooting in the village of Maršić.

On October 19, 1941, the German armed forces committed a war crime by shooting in the vicinity of Kragujevac, in the villages of Grošnica, Maršić and Ilićevo, a total of 412 civilians of Serbian nationality.